I'm sorry but it sounds like you're too embarrassed to stutter in the real world and are making an excuse for yourself under the guise of being a social justice warrior. If you want to help people who stutter you need to experience what we experience on a daily basis. This is an important assignment and you should do it for your own professional benefit. And no, there's nothing offensive about it. Every single University in America with an SLP program does this assignment. And for good reason.